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Finding the Fourth Proportional to 192,169,969.80, 288,254,954.70 and 88,538,974.80

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Solution

The fourth proportional to 192,169,969.80, 288,254,954.70 and 88,538,974.80 is: 132,808,462.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,169,969.80 : 288,254,954.70 = 88,538,974.80 : x
  2. Step 2: Convert to fraction form
    192,169,969.80/288,254,954.70 = 88,538,974.80/x
  3. Step 3: Cross multiply
    192,169,969.80x = 288,254,954.70 × 88,538,974.80
  4. Step 4: Simplify right side
    192,169,969.80x = 25,521,798,170,158,440
  5. Step 5: Solve for x
    x = 25,521,798,170,158,440/192,169,969.80
  6. Step 6: Final answer
    x = 132,808,462.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.